C. montana
C. montana may refer to:
- Carodista montana, a moth of the family Lecithoceridae
 - Cedrela montana, the Cedro tree, of the family Meliaceae
 - Centaurea montana, mountain cornflower
 - Choreutis montana, a moth of the family Choreutidae
 - Cicadetta montana, the New Forest cicada
 - Cigaritis montana, a butterfly
 - Clematis montana, the anemone clematis
 - Coccothrinax montana, a palm
 - Cochylimorpha montana, a moth of the family Tortricidae
 - Coleophora montana, a moth of the family Coleophoridae
 - Compsa montana, a beetle of the family Cerambycidae
 - Craspedortha montana, a moth of the family Sphingidae
 - Ctenisolabis montana, an earwig in the family Forficulidae
 - Cydia montana, a moth of the family Tortricidae
 - Cystopteris montana, mountain bladderfern